Fix handling of IPv6 addresses and long hostnames

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
Fix listenAndServe certificate expiration by preloading certs
2021-11-23 23:38:49 -08:00 · 2021-11-23 23:38:49 -08:00 · 2021-11-19 14:29:09 -08:00 · 2021-11-19 13:50:48 -05:00 · 2021-11-19 10:28:49 -08:00 · 2021-11-19 12:31:47 -05:00
12 changed files with 796 additions and 124 deletions
--- a/README.md
+++ b/README.md
@@ -0,0 +1,10 @@
+# [dynamiclistener](https://github.com/rancher/dynamiclistener)
+
+This `README` is a work in progress; aimed towards providing information for navigating the contents of this repository.
+
+## Changing the Expiration Days for Newly Signed Certificates
+
+By default, a newly signed certificate is set to expire 365 days (1 year) after its creation time and date.
+You can use the `CATTLE_NEW_SIGNED_CERT_EXPIRATION_DAYS` environment variable to change this value.
+
+**Please note:** the value for the aforementioned variable must be a string representing an unsigned integer corresponding to the number of days until expiration (i.e. X509 "NotAfter" value).
--- a/cert/cert.go
+++ b/cert/cert.go
@@ -90,6 +90,10 @@ func NewSelfSignedCACert(cfg Config, key crypto.Signer) (*x509.Certificate, erro
 	if err != nil {
 		return nil, err
 	}
+
+	logrus.Infof("generated self-signed CA certificate %s: notBefore=%s notAfter=%s",
+		tmpl.Subject, tmpl.NotBefore, tmpl.NotAfter)
+
 	return x509.ParseCertificate(certDERBytes)
 }

--- a/factory/cert_utils.go
+++ b/factory/cert_utils.go
@@ -10,13 +10,17 @@ import (
 	"math"
 	"math/big"
 	"net"
+	"os"
+	"strconv"
+	"strings"
 	"time"

 	"github.com/sirupsen/logrus"
 )

 const (
-	CertificateBlockType = "CERTIFICATE"
+	CertificateBlockType               = "CERTIFICATE"
+	defaultNewSignedCertExpirationDays = 365
 )

 func NewSelfSignedCACert(key crypto.Signer, cn string, org ...string) (*x509.Certificate, error) {
@@ -39,6 +43,9 @@ func NewSelfSignedCACert(key crypto.Signer, cn string, org ...string) (*x509.Cer
 		return nil, err
 	}

+	logrus.Infof("generated self-signed CA certificate %s: notBefore=%s notAfter=%s",
+		tmpl.Subject, tmpl.NotBefore, tmpl.NotAfter)
+
 	return x509.ParseCertificate(certDERBytes)
 }

@@ -59,6 +66,12 @@ func NewSignedClientCert(signer crypto.Signer, caCert *x509.Certificate, caKey c
 		},
 	}

+	parts := strings.Split(cn, ",o=")
+	if len(parts) > 1 {
+		parent.Subject.CommonName = parts[0]
+		parent.Subject.Organization = parts[1:]
+	}
+
 	cert, err := x509.CreateCertificate(rand.Reader, &parent, caCert, signer.Public(), caKey)
 	if err != nil {
 		return nil, err
@@ -75,12 +88,22 @@ func NewSignedCert(signer crypto.Signer, caCert *x509.Certificate, caKey crypto.
 		return nil, err
 	}

+	expirationDays := defaultNewSignedCertExpirationDays
+	envExpirationDays := os.Getenv("CATTLE_NEW_SIGNED_CERT_EXPIRATION_DAYS")
+	if envExpirationDays != "" {
+		if envExpirationDaysInt, err := strconv.Atoi(envExpirationDays); err != nil {
+			logrus.Infof("[NewSignedCert] expiration days from ENV (%s) could not be converted to int (falling back to default value: %d)", envExpirationDays, defaultNewSignedCertExpirationDays)
+		} else {
+			expirationDays = envExpirationDaysInt
+		}
+	}
+
 	parent := x509.Certificate{
 		DNSNames:     domains,
 		ExtKeyUsage:  []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
 		IPAddresses:  ips,
 		KeyUsage:     x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
-		NotAfter:     time.Now().Add(time.Hour * 24 * 365).UTC(),
+		NotAfter:     time.Now().Add(time.Hour * 24 * time.Duration(expirationDays)).UTC(),
 		NotBefore:    caCert.NotBefore,
 		SerialNumber: serialNumber,
 		Subject: pkix.Name{
--- a/factory/gen.go
+++ b/factory/gen.go
@@ -6,7 +6,9 @@ import (
 	"crypto/elliptic"
 	"crypto/rand"
 	"crypto/sha1"
+	"crypto/sha256"
 	"crypto/x509"
+	"encoding/hex"
 	"encoding/pem"
 	"fmt"
 	"net"
@@ -26,7 +28,7 @@ const (
 )

 var (
-	cnRegexp = regexp.MustCompile("^([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$")
+	cnRegexp = regexp.MustCompile("^([A-Za-z0-9:][-A-Za-z0-9_.:]*)?[A-Za-z0-9:]$")
 )

 type TLS struct {
@@ -68,20 +70,41 @@ func collectCNs(secret *v1.Secret) (domains []string, ips []net.IP, err error) {
 	return
 }

-// Merge combines the SAN lists from the target and additional Secrets, and returns a potentially modified Secret,
-// along with a bool indicating if the returned Secret has been updated or not. If the two SAN lists alread matched
-// and no merging was necessary, but the Secrets' certificate fingerprints differed, the second secret is returned
-// and the updated bool is set to true despite neither certificate having actually been modified. This is required
-// to support handling certificate renewal within the kubernetes storage provider.
+// Merge combines the SAN lists from the target and additional Secrets, and
+// returns a potentially modified Secret, along with a bool indicating if the
+// returned Secret is not the same as the target Secret.
+//
+// If the merge would not add any CNs to the additional Secret, the additional
+// Secret is returned, to allow for certificate rotation/regeneration.
+//
+// If the merge would not add any CNs to the target Secret, the target Secret is
+// returned; no merging is necessary.
+//
+// If neither certificate is acceptable as-is, a new certificate containing
+// the union of the two lists is generated, using the private key from the
+// first Secret. The returned Secret will contain the updated cert.
 func (t *TLS) Merge(target, additional *v1.Secret) (*v1.Secret, bool, error) {
-	secret, updated, err := t.AddCN(target, cns(additional)...)
-	if !updated {
-		if target.Annotations[fingerprint] != additional.Annotations[fingerprint] {
-			secret = additional
-			updated = true
-		}
+	// static secrets can't be altered, don't bother trying
+	if IsStatic(target) {
+		return target, false, nil
 	}
-	return secret, updated, err
+
+	mergedCNs := append(cns(target), cns(additional)...)
+
+	// if the additional secret already has all the CNs, use it in preference to the
+	// current one. This behavior is required to allow for renewal or regeneration.
+	if !NeedsUpdate(0, additional, mergedCNs...) {
+		return additional, true, nil
+	}
+
+	// if the target secret already has all the CNs, continue using it. The additional
+	// cert had only a subset of the current CNs, so nothing needs to be added.
+	if !NeedsUpdate(0, target, mergedCNs...) {
+		return target, false, nil
+	}
+
+	// neither cert currently has all the necessary CNs; generate a new one.
+	return t.generateCert(target, mergedCNs...)
 }

 // Renew returns a copy of the given certificate that has been re-signed
@@ -119,6 +142,12 @@ func (t *TLS) AddCN(secret *v1.Secret, cn ...string) (*v1.Secret, bool, error) {
 	return t.generateCert(secret, cn...)
 }

+func (t *TLS) Regenerate(secret *v1.Secret) (*v1.Secret, error) {
+	cns := cns(secret)
+	secret, _, err := t.generateCert(nil, cns...)
+	return secret, err
+}
+
 func (t *TLS) generateCert(secret *v1.Secret, cn ...string) (*v1.Secret, bool, error) {
 	secret = secret.DeepCopy()
 	if secret == nil {
@@ -168,7 +197,7 @@ func populateCN(secret *v1.Secret, cn ...string) *v1.Secret {
 	}
 	for _, cn := range cn {
 		if cnRegexp.MatchString(cn) {
-			secret.Annotations[cnPrefix+cn] = cn
+			secret.Annotations[getAnnotationKey(cn)] = cn
 		} else {
 			logrus.Errorf("dropping invalid CN: %s", cn)
 		}
@@ -179,7 +208,10 @@ func populateCN(secret *v1.Secret, cn ...string) *v1.Secret {
 // IsStatic returns true if the Secret has an attribute indicating that it contains
 // a static (aka user-provided) certificate, which should not be modified.
 func IsStatic(secret *v1.Secret) bool {
-	return secret.Annotations[Static] == "true"
+	if secret != nil && secret.Annotations != nil {
+		return secret.Annotations[Static] == "true"
+	}
+	return false
 }

 // NeedsUpdate returns true if any of the CNs are not currently present on the
@@ -192,7 +224,7 @@ func NeedsUpdate(maxSANs int, secret *v1.Secret, cn ...string) bool {
 	}

 	for _, cn := range cn {
-		if secret.Annotations[cnPrefix+cn] == "" {
+		if secret.Annotations[getAnnotationKey(cn)] == "" {
 			if maxSANs > 0 && len(cns(secret)) >= maxSANs {
 				return false
 			}
@@ -236,3 +268,22 @@ func Marshal(x509Cert *x509.Certificate, privateKey crypto.Signer) ([]byte, []by
 func NewPrivateKey() (crypto.Signer, error) {
 	return ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
 }
+
+// getAnnotationKey return the key to use for a given CN. IPv4 addresses and short hostnames
+// are safe to store as-is, but longer hostnames and IPv6 address must be truncated and/or undergo
+// character replacement in order to be used as an annotation key. If the CN requires modification,
+// a portion of the SHA256 sum of the original value is used as the suffix, to reduce the likelihood
+// of collisions in modified values.
+func getAnnotationKey(cn string) string {
+	cn = cnPrefix + cn
+	cnLen := len(cn)
+	if cnLen < 64 && !strings.ContainsRune(cn, ':') {
+		return cn
+	}
+	digest := sha256.Sum256([]byte(cn))
+	cn = strings.ReplaceAll(cn, ":", "_")
+	if cnLen > 56 {
+		cnLen = 56
+	}
+	return cn[0:cnLen] + "-" + hex.EncodeToString(digest[0:])[0:6]
+}
--- a/filter.go
+++ b/filter.go
@@ -0,0 +1,12 @@
+package dynamiclistener
+
+func OnlyAllow(str string) func(...string) []string {
+	return func(s2 ...string) []string {
+		for _, s := range s2 {
+			if s == str {
+				return []string{s}
+			}
+		}
+		return nil
+	}
+}
--- a/go.mod
+++ b/go.mod
@@ -3,10 +3,9 @@ module github.com/rancher/dynamiclistener
 go 1.12

 require (
-	github.com/rancher/wrangler v0.1.4
-	github.com/rancher/wrangler-api v0.2.0
-	github.com/sirupsen/logrus v1.4.1
-	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
-	k8s.io/api v0.0.0-20190409021203-6e4e0e4f393b
-	k8s.io/apimachinery v0.0.0-20190404173353-6a84e37a896d
+	github.com/rancher/wrangler v0.8.9
+	github.com/sirupsen/logrus v1.4.2
+	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
+	k8s.io/api v0.18.8
+	k8s.io/apimachinery v0.18.8
 )
--- a/go.sum
+++ b/go.sum
@@ -1,132 +1,622 @@
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--- a/listener.go
+++ b/listener.go
@@ -7,6 +7,7 @@ import (
 	"crypto/x509"
 	"net"
 	"net/http"
+	"runtime"
 	"strings"
 	"sync"
 	"time"
@@ -27,6 +28,7 @@ type TLSFactory interface {
 	AddCN(secret *v1.Secret, cn ...string) (*v1.Secret, bool, error)
 	Merge(target *v1.Secret, additional *v1.Secret) (*v1.Secret, bool, error)
 	Filter(cn ...string) []string
+	Regenerate(secret *v1.Secret) (*v1.Secret, error)
 }

 type SetFactory interface {
@@ -74,11 +76,18 @@ func NewListener(l net.Listener, storage TLSStorage, caCert *x509.Certificate, c
 		setter.SetFactory(dynamicListener.factory)
 	}

+	if config.RegenerateCerts != nil && config.RegenerateCerts() {
+		if err := dynamicListener.regenerateCerts(); err != nil {
+			return nil, nil, err
+		}
+	}
+
 	if config.ExpirationDaysCheck == 0 {
 		config.ExpirationDaysCheck = 30
 	}

 	tlsListener := tls.NewListener(dynamicListener.WrapExpiration(config.ExpirationDaysCheck), dynamicListener.tlsConfig)
+
 	return tlsListener, dynamicListener.cacheHandler(), nil
 }

@@ -129,6 +138,7 @@ type Config struct {
 	MaxSANs               int
 	ExpirationDaysCheck   int
 	CloseConnOnCertChange bool
+	RegenerateCerts       func() bool
 	FilterCN              func(...string) []string
 }

@@ -153,7 +163,10 @@ type listener struct {
 func (l *listener) WrapExpiration(days int) net.Listener {
 	ctx, cancel := context.WithCancel(context.Background())
 	go func() {
-		time.Sleep(30 * time.Second)
+		// busy-wait for certificate preload to complete
+		for l.cert == nil {
+			runtime.Gosched()
+		}

 		for {
 			wait := 6 * time.Hour
@@ -180,6 +193,30 @@ func (l *listener) WrapExpiration(days int) net.Listener {
 	}
 }

+// regenerateCerts regenerates the used certificates and
+// updates the secret.
+func (l *listener) regenerateCerts() error {
+	l.Lock()
+	defer l.Unlock()
+
+	secret, err := l.storage.Get()
+	if err != nil {
+		return err
+	}
+
+	newSecret, err := l.factory.Regenerate(secret)
+	if err != nil {
+		return err
+	}
+	if err := l.storage.Update(newSecret); err != nil {
+		return err
+	}
+	// clear version to force cert reload
+	l.version = ""
+
+	return nil
+}
+
 func (l *listener) checkExpiration(days int) error {
 	l.Lock()
 	defer l.Unlock()
@@ -225,7 +262,13 @@ func (l *listener) checkExpiration(days int) error {
 func (l *listener) Accept() (net.Conn, error) {
 	l.init.Do(func() {
 		if len(l.sans) > 0 {
-			l.updateCert(l.sans...)
+			if err := l.updateCert(l.sans...); err != nil {
+				logrus.Errorf("failed to update cert with configured SANs: %v", err)
+				return
+			}
+			if _, err := l.loadCert(nil); err != nil {
+				logrus.Errorf("failed to preload certificate: %v", err)
+			}
 		}
 	})

@@ -247,7 +290,7 @@ func (l *listener) Accept() (net.Conn, error) {

 	if !strings.Contains(host, ":") {
 		if err := l.updateCert(host); err != nil {
-			logrus.Infof("failed to create TLS cert for: %s, %v", host, err)
+			logrus.Errorf("failed to update cert with listener address: %v", err)
 		}
 	}

@@ -275,8 +318,9 @@ func (l *listener) wrap(conn net.Conn) net.Conn {

 type closeWrapper struct {
 	net.Conn
-	id int
-	l  *listener
+	id    int
+	l     *listener
+	ready bool
 }

 func (c *closeWrapper) close() error {
@@ -291,13 +335,15 @@ func (c *closeWrapper) Close() error {
 }

 func (l *listener) getCertificate(hello *tls.ClientHelloInfo) (*tls.Certificate, error) {
+	newConn := hello.Conn
 	if hello.ServerName != "" {
 		if err := l.updateCert(hello.ServerName); err != nil {
+			logrus.Errorf("failed to update cert with TLS ServerName: %v", err)
 			return nil, err
 		}
 	}

-	return l.loadCert()
+	return l.loadCert(newConn)
 }

 func (l *listener) updateCert(cn ...string) error {
@@ -314,7 +360,7 @@ func (l *listener) updateCert(cn ...string) error {
 		return err
 	}

-	if !factory.IsStatic(secret) && !factory.NeedsUpdate(l.maxSANs, secret, cn...) {
+	if factory.IsStatic(secret) || !factory.NeedsUpdate(l.maxSANs, secret, cn...) {
 		return nil
 	}

@@ -332,14 +378,16 @@ func (l *listener) updateCert(cn ...string) error {
 		if err := l.storage.Update(secret); err != nil {
 			return err
 		}
-		// clear version to force cert reload
+		// Clear version to force cert reload next time loadCert is called by TLSConfig's
+		// GetCertificate hook to provide a certificate for a new connection. Note that this
+		// means the old certificate stays in l.cert until a new connection is made.
 		l.version = ""
 	}

 	return nil
 }

-func (l *listener) loadCert() (*tls.Certificate, error) {
+func (l *listener) loadCert(currentConn net.Conn) (*tls.Certificate, error) {
 	l.RLock()
 	defer l.RUnlock()

@@ -369,12 +417,17 @@ func (l *listener) loadCert() (*tls.Certificate, error) {
 		return nil, err
 	}

-	// cert has changed, close closeWrapper wrapped connections
-	if l.conns != nil {
+	// cert has changed, close closeWrapper wrapped connections if this isn't the first load
+	if currentConn != nil && l.conns != nil && l.cert != nil {
 		l.connLock.Lock()
 		for _, conn := range l.conns {
+			// Don't close a connection that's in the middle of completing a TLS handshake
+			if !conn.ready {
+				continue
+			}
 			_ = conn.close()
 		}
+		l.conns[currentConn.(*closeWrapper).id].ready = true
 		l.connLock.Unlock()
 	}

@@ -398,7 +451,9 @@ func (l *listener) cacheHandler() http.Handler {
 				}
 			}

-			l.updateCert(h)
+			if err := l.updateCert(h); err != nil {
+				logrus.Errorf("failed to update cert with HTTP request Host header: %v", err)
+			}
 		}
 	})
 }
--- a/server/server.go
+++ b/server/server.go
@@ -15,7 +15,7 @@ import (
 	"github.com/rancher/dynamiclistener/storage/file"
 	"github.com/rancher/dynamiclistener/storage/kubernetes"
 	"github.com/rancher/dynamiclistener/storage/memory"
-	v1 "github.com/rancher/wrangler-api/pkg/generated/controllers/core/v1"
+	v1 "github.com/rancher/wrangler/pkg/generated/controllers/core/v1"
 	"github.com/sirupsen/logrus"
 	"golang.org/x/crypto/acme/autocert"
 )
@@ -64,7 +64,10 @@ func ListenAndServe(ctx context.Context, httpsPort, httpPort int, handler http.H
 		}

 		tlsServer := http.Server{
-			Handler:  handler,
+			Handler: handler,
+			BaseContext: func(listener net.Listener) context.Context {
+				return ctx
+			},
 			ErrorLog: errorLog,
 		}

@@ -86,6 +89,9 @@ func ListenAndServe(ctx context.Context, httpsPort, httpPort int, handler http.H
 			Addr:     fmt.Sprintf("%s:%d", opts.BindHost, httpPort),
 			Handler:  handler,
 			ErrorLog: errorLog,
+			BaseContext: func(listener net.Listener) context.Context {
+				return ctx
+			},
 		}
 		go func() {
 			logrus.Infof("Listening on %s:%d", opts.BindHost, httpPort)
--- a/storage/file/file.go
+++ b/storage/file/file.go
@@ -2,9 +2,10 @@ package file

 import (
 	"encoding/json"
-	"github.com/rancher/dynamiclistener"
-	"k8s.io/api/core/v1"
 	"os"
+
+	"github.com/rancher/dynamiclistener"
+	v1 "k8s.io/api/core/v1"
 )

 func New(file string) dynamiclistener.TLSStorage {
--- a/storage/kubernetes/ca.go
+++ b/storage/kubernetes/ca.go
@@ -5,7 +5,7 @@ import (
 	"crypto/x509"

 	"github.com/rancher/dynamiclistener/factory"
-	v1controller "github.com/rancher/wrangler-api/pkg/generated/controllers/core/v1"
+	v1controller "github.com/rancher/wrangler/pkg/generated/controllers/core/v1"
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
--- a/storage/kubernetes/controller.go
+++ b/storage/kubernetes/controller.go
@@ -6,8 +6,8 @@ import (
 	"time"

 	"github.com/rancher/dynamiclistener"
-	"github.com/rancher/wrangler-api/pkg/generated/controllers/core"
-	v1controller "github.com/rancher/wrangler-api/pkg/generated/controllers/core/v1"
+	"github.com/rancher/wrangler/pkg/generated/controllers/core"
+	v1controller "github.com/rancher/wrangler/pkg/generated/controllers/core/v1"
 	"github.com/rancher/wrangler/pkg/start"
 	"github.com/sirupsen/logrus"
 	v1 "k8s.io/api/core/v1"
@@ -42,7 +42,7 @@ func New(ctx context.Context, core CoreGetter, namespace, name string, backing d
 			core := core()
 			if core != nil {
 				storage.init(core.Core().V1().Secret())
-				start.All(ctx, 5, core)
+				_ = start.All(ctx, 5, core)
 				return
 			}

@@ -89,18 +89,31 @@ func (s *storage) init(secrets v1controller.SecretController) {
 	})
 	s.secrets = secrets

-	if secret, err := s.storage.Get(); err == nil && secret != nil && len(secret.Data) > 0 {
-		// just ensure there is a secret in k3s
-		if _, err := s.secrets.Get(s.namespace, s.name, metav1.GetOptions{}); errors.IsNotFound(err) {
-			_, _ = s.secrets.Create(&v1.Secret{
-				ObjectMeta: metav1.ObjectMeta{
-					Name:        s.name,
-					Namespace:   s.namespace,
-					Annotations: secret.Annotations,
-				},
-				Type: v1.SecretTypeTLS,
-				Data: secret.Data,
-			})
+	secret, err := s.storage.Get()
+	if err == nil && secret != nil && len(secret.Data) > 0 {
+		// local storage had a cached secret, ensure that it exists in Kubernetes
+		_, err := s.secrets.Create(&v1.Secret{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:        s.name,
+				Namespace:   s.namespace,
+				Annotations: secret.Annotations,
+			},
+			Type: v1.SecretTypeTLS,
+			Data: secret.Data,
+		})
+		if err != nil && !errors.IsAlreadyExists(err) {
+			logrus.Warnf("Failed to create Kubernetes secret: %v", err)
+		}
+	} else {
+		// local storage was empty, try to populate it
+		secret, err := s.secrets.Get(s.namespace, s.name, metav1.GetOptions{})
+		if err != nil {
+			logrus.Warnf("Failed to init Kubernetes secret: %v", err)
+			return
+		}
+
+		if err := s.storage.Update(secret); err != nil {
+			logrus.Warnf("Failed to init backing storage secret: %v", err)
 		}
 	}
 }
@@ -130,23 +143,31 @@ func (s *storage) saveInK8s(secret *v1.Secret) (*v1.Secret, error) {
 		return secret, nil
 	}

-	if existing, err := s.storage.Get(); err == nil && s.tls != nil {
-		if newSecret, updated, err := s.tls.Merge(existing, secret); err == nil && updated {
-			secret = newSecret
-		}
-	}
-
 	targetSecret, err := s.targetSecret()
 	if err != nil {
 		return nil, err
 	}

-	if newSecret, updated, err := s.tls.Merge(targetSecret, secret); err != nil {
-		return nil, err
-	} else if !updated {
-		return newSecret, nil
-	} else {
-		secret = newSecret
+	// if we don't have a TLS factory we can't create certs, so don't bother trying to merge anything,
+	// in favor of just blindly replacing the fields on the Kubernetes secret.
+	if s.tls != nil {
+		// merge new secret with secret from backing storage, if one exists
+		if existing, err := s.storage.Get(); err == nil && existing != nil && len(existing.Data) > 0 {
+			if newSecret, updated, err := s.tls.Merge(existing, secret); err == nil && updated {
+				secret = newSecret
+			}
+		}
+
+		// merge new secret with existing secret from Kubernetes, if one exists
+		if len(targetSecret.Data) > 0 {
+			if newSecret, updated, err := s.tls.Merge(targetSecret, secret); err != nil {
+				return nil, err
+			} else if !updated {
+				return newSecret, nil
+			} else {
+				secret = newSecret
+			}
+		}
 	}

 	targetSecret.Annotations = secret.Annotations
Author	SHA1	Message	Date
Brad Davidson	43f9c3ae0a	Fix handling of IPv6 addresses and long hostnames Signed-off-by: Brad Davidson <brad.davidson@rancher.com>	2021-11-23 23:38:49 -08:00
Brad Davidson	284cc004e8	Fix listenAndServe certificate expiration by preloading certs Signed-off-by: Brad Davidson <brad.davidson@rancher.com>	2021-11-23 23:38:49 -08:00
Kinara Shah	120a37b97a	Merge pull request #51 from nickgerace/quick-fix Add README	2021-11-19 14:29:09 -08:00
Nick Gerace	bbac29e0fa	Add README	2021-11-19 13:50:48 -05:00
Kinara Shah	962b635269	Merge pull request #50 from nickgerace/quick-fix Fix defaultNewSignedCertExpirationDays const	2021-11-19 10:28:49 -08:00
Nick Gerace	f147aa4166	Fix defaultNewSignedCertExpirationDays const This a quick fix for `2644a6ed16`	2021-11-19 12:31:47 -05:00
Kinara Shah	63157c59ce	Merge pull request #46 from nickgerace/days Allow for default expiration days to be loaded from env	2021-11-19 08:59:57 -08:00
Nick Gerace	2644a6ed16	Allow for default expiration days to be loaded from env	2021-11-18 12:38:35 -05:00
Brian Downs	27f4642299	Add ability to force cert regeneration (#43 ) * add ability to force cert regeneration	2021-11-15 13:50:26 -07:00
Caleb Bron	cd5d71f2fe	Merge pull request #44 from cmurphy/fix-type Fix net.Conn type assertion	2021-11-04 13:09:48 -07:00
Colleen Murphy	fb66484384	Fix net.Conn type assertion Don't assert that all connections are wrapped, as they won't be if the CloseConnOnCertChange setting is false. Only run the assertion within a conditional for wrapped connections, where it is safe. This prevents a panic from happening when CloseConnOnCertChange is not used.	2021-10-29 11:03:02 -07:00
Darren Shepherd	6b37dc1212	Merge pull request #42 from cmurphy/fix-close-conn Skip closing an initializing connection	2021-10-27 08:35:21 -07:00
Colleen Murphy	c7dd355394	Skip closing an initializing connection Without this change, if a cert is updated (e.g. to add CNs) while the listener is in the middle of Accept()ing a new connection, the connection gets dropped, we'll see a message like this in the server logs: http: TLS handshake error from 127.0.0.1:51232: write tcp 127.0.7.1:8443->127.0.0.1:51232: use of closed network connection and the client (like a browser) won't necessarily reconnect. This change modifies the GetCertificate routine in the listener's tls.Config to keep track of the state of the incoming connections and only close connections that have completed GetCertificate and therefore are finished with their TLS handshake, so that only old established connections are closed.	2021-10-25 13:17:24 -07:00
Darren Shepherd	94e22490cf	Merge pull request #41 from weihanglo/nil-defer-storage-tls Merge TLS only if TLS factory is set	2021-08-03 10:23:59 -07:00
Weihang Lo	b45d8a455e	Merge TLS only if TLS factory is set Since `storage.tls` is optional, we should check it existence before calling its methods.	2021-07-12 18:25:01 +08:00
Darren Shepherd	9865ae859c	Don't reset connections on the first load of the certs	2021-06-16 01:00:09 -07:00
Darren Shepherd	db883ae66a	Don't reset connections on the first load of the certs	2021-06-16 00:23:14 -07:00
Darren Shepherd	9dfd7df057	Pass context to http server as BaseContext	2021-06-15 22:42:42 -07:00
Darren Shepherd	ff22834bde	Avoid panic when secret is nil	2021-06-15 22:42:42 -07:00
Sjoerd Simons	dc7452dbb8	Accept IPv6 address as CN names Expand the cnRegexp to also accept ipv6 addresses such as: * ::1 * 2a00:1450:400e:80e:: * 2a00:1450:400e:80e::200e Fixes: #37 Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>	2021-06-14 11:07:13 -07:00
Dan Ramich	86af265dcd	Merge pull request #35 from dramich/panic Update IsStatic to check for nil annotations	2021-04-26 09:21:45 -06:00
Dan Ramich	f373fc1c7c	Update IsStatic to check for nil annotations	2021-04-23 14:56:14 -06:00
Darren Shepherd	e7b1adba70	Update to wrangler v0.8.0 and merge v0.2.x to master	2021-04-12 15:09:30 -07:00
Darren Shepherd	a60200ab9e	Merge tag 'v0.2.3'	2021-04-12 15:00:05 -07:00
Darren Shepherd	9b1b7d3132	Add filter helper method	2020-11-09 21:52:17 -07:00
Darren Shepherd	85f32491cb	Add dumb hook to set the organization in the client cert	2020-09-10 13:32:14 -07:00
Darren Shepherd	ebebb82b9b	Add LoadOrGenClient to handle client cert generation	2020-08-01 23:37:51 -07:00
Darren Shepherd	bafb051656	Merge pull request #27 from ibuildthecloud/master Fix error masking issue	2020-07-27 22:48:58 -07:00
Darren Shepherd	3b42c52bec	Fix error masking issue Also don't do an extra lookup of TLS secret after update.	2020-07-27 22:48:13 -07:00
Darren Shepherd	207e8a5c14	Merge pull request #23 from KnicKnic/fix_certpath_windows fix certpath generation for windows	2020-07-27 22:48:06 -07:00
Darren Shepherd	9c1939da3a	Merge pull request #25 from ibuildthecloud/master Stop using wrangler-api project	2020-07-14 13:10:33 -07:00
Darren Shepherd	5529139fbe	Update vendor	2020-07-14 13:09:07 -07:00
Darren Shepherd	bcbb612b24	Stop using wrangler-api project	2020-07-14 13:09:07 -07:00